Acutechnology Semiconductor Inc.
AQ120
Typical Performance Characteristics
900
Constant current mode
800
700
600
500
400
300
200
100
Constant voltage mode
2
2.2
2.4
2.6
2.8
3
3.2
3.4
3.6
3.8
4
4.2
200mV/div
Charge current vs battery voltage
V2/V
1 cell Lithium Ion battery
Fig.1 Charge current vs battery voltage
4
3.5
3
Constant voltage
2.5
2
1.5
1
900
Constant current
700
500
300
100
0
1
2
3
4
Fig. 2 Battery charge vs time
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4
Rev. 1.8 April 1, 2006